Hose and pipe coupler



June 11, 1940.

F. E. ARM

HOSE AND PIPE COUPLER Filed Feb. 25. 1938 VKITNESSES Patented June. l1,

uNirEfo STATE-s PATENT omer Host:` AND PIPE ooUPLEn' Frederick E. Arm, Brooklyn. N. Y.,'assignor ofone-half to Mary Mastowsld, vNew York, N. Y.

Application February 25, 193,8, Serial-No. 192,573

v1 claim.V (01. zas-17s) Thisinvention relates to an improved hose and pipe coupler, an object being to provide aA construction which will present a smooth and neat appearance with no protruding portions to be injured or get out of order.

` Another object of the invention is to provide an improved hose and pipe coupler wherein the movable parts are moved directly toward and from each other when coupling or uncoupling.

A further object of the invention is .to pro- Fig. 2 is va sectional view through Fig. 1 ap' proximately on the line 2 2, the same being on an enlarged scale;- v

Fig. 3A is a transverse sectional view through' Fig. 2 approximately on the line 3-3;

Fig. 4 is an end View of Vone members shownin Fig. 2;

Fig. 5 is an elevation of the coupler with the 25. outside covering and locking members removed; Fig. 6 is a sidevelevation'of the left-hand part of the structure shown in Fig. 1 with the locking sleeve pulled back; y

Fig. 7 is a side elevation of the rightehand portion of the structure shown in Fig. 1 withthe locking sleeve pulledback. Y

Referring to the accompanying drawing by numerals, I and 2 indicate sliding members which are also locking members to lock the coupler against becoming undone. These members coupling members 3 and 4 'are exactly alike either of the members may be used at either end of a hose and, consequently, either end-of the hose may be coupled with eltherend of an'adjacent hose. As shown particularly in Figs. -2 and 5,

-the coupling 4 is provided with stop means, forlexample an upstanding annular ring Shaving a notch or groove l; also the coupling 4 is provided.

with hook-shaped coupling members 8. Shown in the accompanying drawing' there are only two hookfshaped coupling members 8 for the coupllng 4v and also two similarly shaped members of the couplingv for' the coupling 3. These coupling members or hooks as they conveniently are called, have v rounded terminals -(Fig. 5) yganci contiguous cani surfaces 8a. When the parts are arranged as shown in Fig. 5, the coupling membersa einter- 5 locked or coupled. If a longitudinal ull were made thereon they would quickly separate 'and during the separation they would rotate somewhat. To prevent this rotation and separation except when desired, the lockng'members I and 10 2are'used. Each ofthe 4locking members l and 2V is .pro-A vided with three notches 9 and three substantially rectangular lugs Ill. Said lugs have leading heels lla (Figs. 6 and 7) which areiheld in is set-back positions in respect to the roundedhook terminals by the interengagement of th grooves I and depressions 25 respectively, in the rings 6 and Athe locking members l, 2. When the two locking members are together,- as shown in' Fig. 20 1,.the lugs I0 o f locking member 2 will-fit into the notches 9 of locking member I. lFrom Fig. 2 it will be observed that these locking members are provided with thickened portions Iland I2 spective rings 6 and the respective shoulders I9 30 Jand 20. These springs are tensioned to tend to hold the parts in the position shown in Figs. 1 and 2 but may be pulled to the position shown in Fig. 7. But in connecting lthe coupling the' rounded terminals of thel hooks 8 are put to- 35` gether, and readily so, because of their exposure for initial engagement, whereupon the tubular members'are turned in opposite directions.I The lugs I0 which ride upon each other at this time,

force the retreat ofthe lock'ing members I, 2, j

because of 'the ensuing cam action ofA the vsur faces 8a (Fig. 5), a non-turning interlock being established by the eventual snapping of the lugs Ill into the notches 9 (Fig. 1). in the position shown in Fig. 1 a longitudinal pull on 45 the shanks cannot separate the couplings; also a rotary movement of locking members I and 2 cannot separatethe couplings.- but only a lungi-- tudinal movement accompanying a grasping of the locking members I, 2.

As shown 4in Fig. 2, there is provided a sleeve 2l inv each of the coupling members '3 and 4.y

These sleeves are preferably coimters somewhatin the coupling members andare provided with annular grooves 22 for receivingl the ref spective washers or gaskets 23 and 24. These gaskets may be rubber, fiber, or other material and are pressed tightly together upon the occurrence of the foregoing cam action of the cam surfaces 8a for pulling the parts together so as to press Washer 23 tightly against Washer 24.

It will be understood that the locking members i and 2 cannot become interlocked as shown in Fig. 1, until the hook members 8 have been completely interlocked and the Washers tightly pressed together. After the parts have been coupled, as shown in Fig. l, rotary movement of any part will not affect the coupler, and also there are no objectionable protruding pins or other parts which may be injured in case the coupler were roughly handled. It will also be observed that the interengagement'of each de-y pression 25 With the respective groove 1 in the ring 6 provides for a proper sliding or reciprocating movement of locking members l and 2 but not to permit a rotary movement thereof.

-I claim:

A coupler for a pair of tubular members consisting of matching hooks and recesses, said hooks including rounded terminals and contiguous cam surfaces, a spring on each of the tubular members, a lockingl member encasing each of the springs and including a shouldered end, interengaging means on said'tubular members and said locking members for limiting relative axial movement, so that the confronting edges of the shouldered ends are stopped short of the rounded terminals, means to ,prevent relative rotation between said locking members and said tubular members, and interengageable lugs and notches on said confronting edges of said lock' locking members by said cam action and eventually snapping into the notches to establish a non-turning interlock. y

FREDERICK E. ARM. 

